diff options
| -rw-r--r-- | Makefile | 16 | ||||
| -rw-r--r-- | README | 4 | ||||
| -rw-r--r-- | cgb.s | 843 | ||||
| -rw-r--r-- | dmg.s | 14 | ||||
| -rw-r--r-- | dmg0.s | 4 | ||||
| -rw-r--r-- | mgb.s | 14 | ||||
| -rw-r--r-- | nintendo.s | 3 | ||||
| -rw-r--r-- | sgb.s | 10 | ||||
| -rw-r--r-- | sgb2.s | 10 | ||||
| -rw-r--r-- | stadium_cgb.s | 17 | ||||
| -rw-r--r-- | ®.png | bin | 0 -> 152 bytes |
11 files changed, 897 insertions, 38 deletions
@@ -1,6 +1,6 @@ -.SUFFIXES: .s .o .bin +.SUFFIXES: .s .o .bin .png -all: dmg0.bin dmg.bin mgb.bin sgb.bin sgb2.bin stadium_mgb.bin stadium_cgb.bin +all: dmg0.bin dmg.bin mgb.bin sgb.bin sgb2.bin stadium_mgb.bin stadium_cgb.bin cgb.bin .s.o: rgbasm -o $@ $< @@ -8,6 +8,9 @@ all: dmg0.bin dmg.bin mgb.bin sgb.bin sgb2.bin stadium_mgb.bin stadium_cgb.bin .o.bin: rgblink -o $@ $< +.png.bin: + rgbgfx -d 1 -o $@ $< + stadium_mgb.bin: stadium_mgb.o rgblink -o $@ $< rgbfix -f hl $@ @@ -16,5 +19,14 @@ stadium_cgb.bin: stadium_cgb.o rgblink -o $@ $< rgbfix -f hl $@ +dmg0.o: nintendo.s +dmg.o: ®.bin nintendo.s +mgb.o: ®.bin nintendo.s +cgb.o: ®.bin nintendo.s +sgb.o: ®.bin +sgb2.o: ®.bin +stadium_mgb.o: ®.bin nintendo.s +stadium_cgb.o: ®.bin nintendo.s + clean: rm -f *.o *.bin @@ -3,8 +3,8 @@ These are disassembled Game Boy boot ROMs. Compile them with rgbds: https://rednex.github.io/rgbds/ Once they’ve been compiled, dmg0.bin, dmg.bin, mgb.bin, sgb.bin, and sgb2.bin -must be trimmed to 256 bytes each. stadium_mgb.bin and stadium_cgb.bin do not -require trimming. +must be trimmed to 256 bytes each. cgb.bin must be trimmed to 2304 bytes. +stadium_mgb.bin and stadium_cgb.bin do not require trimming. stadium_mgb: 0x15994A0 stadium_cgb: 0x15995F0 @@ -0,0 +1,843 @@ +SECTION "main",rom0 + + ld sp,$FFFE + ld a,2 + jp func7c + +dma: MACRO + db HIGH(\1),LOW(\1),HIGH(\2),LOW(\2),(\3-1)/$10 +ENDM +DMAdata: + dma $D300,$98A0,$130 + dma $D300,$8000,$410 + +ManualSelectPalettes: + db $1E,$53,$D0,$00 + db $1F,$42,$1c,$00 + db $14,$2A,$4D,$19 + db $8C,$7E,$00,$7c + db $31,$6E,$4A,$45 + db $52,$4A,$00,$00 + db $FF,$53,$1F,$7C + db $FF,$03,$1F,$00 + db $FF,$1F,$A7,$00 + db $EF,$1B,$1F,$00 + db $EF,$1B,$00,$7c + db $00,$00,$ff,$03 + +logo: +INCBIN "nintendo.s" + +registered: +INCBIN "®.bin" +registered_: + +data7a: + db $58,$43 + +func7c: + ld [$ff70],a + ld a,$fc + ld [$ff47],a + call $0275 + call $0200 + ld h,$d0 + call $0203 + ld hl,$fe00 + ld c,$a0 + xor a +loop93: + ld [hli],a + dec c + jr nz,loop93 + ld de,$0104 + ld hl,$8010 + ld c,h +loop9e: + ld a,[de] + ld [$ff00+c],a + inc c + call $03c6 + call $03c7 + inc de + ld a,e + cp $34 + jr nz,loop9e + ld de,registered + ld b,registered_ - registered +funcb2: + ld a,[de] + inc de + ld [hli],a + inc hl + dec b + jr nz,funcb2 + call $03f0 + ld a,$01 + ld [$ff4f],a + ld a,$91 + ld [$ff40],a + ld hl,$98b2 + ld b,$4e + ld c,$44 + call $0291 + xor a + ld [$ff4f],a + ld c,$80 + ld hl,$0042 + ld b,$18 +loopd8: + ld a,[$ff00+c] + inc c + cp [hl] +infloop1: + jr nz,infloop1 + inc hl + dec b + jr nz,loopd8 + ld hl,$0134 + ld b,$19 + ld a,b +loope7: + add [hl] + inc l + dec b + jr nz,loope7 + add [hl] +infloop2: + jr nz,infloop2 + call $031c + jr .next + nop + nop +.next + call $05d0 + xor a + ld [$ff70],a + ld a,$11 + ld [$ff50],a + +SEcTION "more",rom0[$200] +func200: + ld hl,$8000 + xor a +loop204: + ld [hli],a + bit 5,h + jr z,loop204 + ret + +func20a: + ld a,[hli] + ld [de],a + inc de + dec c + jr nz,func20a + ret + +func211: + push hl + ld hl,$ff0f + res 0,[hl] +.prev + bit 0,[hl] + jr z,.prev + pop hl + ret + +func21d: + ld de,$ff00 + ld hl,$d003 + ld c,$0f + ld a,$30 + ld [de],a + ld a,$20 + ld [de],a + ld a,[de] + cpl + and c + swap a + ld b,a + ld a,$10 + ld [de],a + ld a,[de] + cpl + and c + or b + ld c,a + ld a,[hl] + xor c + and $f0 + ld b,a + ld a,[hli] + xor c + and c + or b + ld [hld],a + ld b,a + ld a,c + ld [hl],a + ld a,$30 + ld [de], a + ret + +func24a: + ld a,$80 + ld [$ff68],a + ld [$ff6a],a + ld c,$6b +.loop1 + ld a,[hli] + ld [$ff00+c],a + dec b + jr nz,.loop1 + ld c,d + add hl,bc + ld b,e + ld c,$69 +.loop2 + ld a,[hli] + ld [$ff00+c],a + dec b + jr nz,.loop2 + ret + +func262: + push bc + push de + push hl + ld hl,$d800 + ld b,1 + ld d,$3f + ld e,$40 + call $24a + pop hl + pop de + pop bc + ret + +func275: + ld a,$80 + ld [$ff26],a + ld [$ff11],a + ld a,$f3 + ld [$ff12],a + ld [$ff25],a + ld a,$77 + ld [$ff24],a + ld hl,$ff30 + xor a + ld c,$10 +.loop + ld [hli],a + cpl + dec c + jr nz,.loop + ret + +func291: + call func211 + call func262 + ld a,c + cp $38 + jr nz,.next + push hl + xor a + ld [$ff4f],a + ld hl,$99a7 + ld a,$38 +.loop1 + ld [hli],a + inc a + cp $3f + jr nz,.loop1 + ld a,$01 + ld [$ff4f],a + pop hl +.next + push bc + push hl + ld hl,$0143 + bit 7,[hl] + call z,$0589 + pop hl + pop bc + call func211 + ld a,c + sub $30 + jp nc,$0306 + ld a,c + cp $01 + jp z,$0306 + ld a,l + cp $d1 + jr z,.next2 + push bc + ld b,$03 +.loopc + ld c,$01 +.loopb + ld d,$03 +.loopa + ld a,[hl] + and $f8 + or c + ld [hli],a + dec d + jr nz,.loopa + inc c + ld a,c + cp $06 + jr nz,.loopb + ld de,$0011 + add hl,de + dec b + jr nz,.loopc + ld de,$ffa1 + add hl,de + pop bc +.next2 + inc b + ld a,b + ld e,$83 + cp $62 + jr z,.next3 + ld e,$c1 + cp $64 + jr nz,func306 +.next3 + ld a,e + ld [$ff13],a + ld a,$87 + ld [$ff14],a +func306: + ld a,[$d002] + cp $00 + jr z,.next4 + dec a + ld [$d002],a + ld a,c + cp $01 + jp z,func291 +.next4 + dec c + jp nz,func291 + ret + +func31c: + ld c,$26 +.loop + call func34a + call func211 + call func262 + dec c + jr nz,.loop + call func211 + ld a,1 + ld [$ff4f],a + call $33e + call $341 + xor a + ld [$ff4f],a + call $33e + ret + +func33e: + ld hl,8 + ld de,$ff51 + ld c,5 + call $20a + ret + +func34a: + push bc + push de + push hl + ld hl,$d840 + ld c,$20 +.loop + ld a,[hl] + and $1f + cp $1f + jr z,.next1 + inc a +.next1 + ld d,a + ld a,[hli] + rlca + rlca + rlca + and $07 + ld b,a + ld a,[hld] + rlca + rlca + rlca + and $18 + or b + cp $1f + jr z,.next2 + inc a +.next2 + rrca + rrca + rrca + ld b,a + and $e0 + or d + ld [hli],a + ld a,b + and $03 + ld e,a + ld a,[hl] + rrca + rrca + and $1f + cp $1f + jr z,.next3 + inc a +.next3 + rlca + rlca + or e + ld [hli],a + dec c + jr nz,.loop + pop hl + pop de + pop bc + ret + +func38f: + ld c,0 +.loop + ld a,[de] + and $f0 + bit 1,c + jr z,.next1 + swap a +.next1 + ld b,a + inc hl + ld a,[hl] + or b + ld [hli],a + ld a,[de] + and $f + bit 1,c + jr nz,.next2 + swap a +.next2 + ld b,a + inc hl + ld a,[hl] + or b + ld [hli],a + inc de + bit 0,c + jr z,.next3 + push de + ld de,$fff8 + bit 1,c + jr z,.next4 + ld de,8 +.next4 + add hl,de + pop de +.next3 + inc c + ld a,c + cp $18 + jr nz,.loop + ret + +func3c6: + ld b,a + push de + ld d,4 +.loop + ld e,b + rl b + rla + rl e + rla + dec d + jr nz,.loop + pop de + ld [hli],a + inc hl + ld [hli],a + inc hl + ret + +func3da: + ld a,$19 + ld [$9910],a + ld hl,$992f +.loop2 + ld c,$c +.loop1 + dec a + jr z,.done + ld [hld],a + dec c + jr nz,.loop1 + ld l,$f + jr .loop2 +.done + ret + +func3f0: + ld a,$01 + ld [$ff4f],a + call $0200 + ld de,$0607 + ld hl,$8080 + ld c,$c0 +.loop1 + ld a,[de] + ld [hli],a + inc hl + ld [hli],a + inc hl + inc de + dec c + jr nz,.loop1 + ld de,$0104 + call $038f + ld bc,$ffa8 + add hl,bc + call $038f + ld bc,$fff8 + add hl,bc + ld de,$0072 + ld c,$08 +.loop2 + inc hl + ld a,[de] + ld [hli],a + inc de + dec c + jr nz,.loop2 + ld hl,$98c2 + ld b,$08 + ld a,$08 +.loop4 + ld c,$10 +.loop3 + ld [hli],a + dec c + jr nz,.loop3 + ld de,$0010 + add hl,de + dec b + jr nz,.loop4 + xor a + ld [$ff4f],a + ld hl,$98c2 + ld a,$08 +.loop5 + ld [hli],a + inc a + cp $18 + jr nz,.skip1 + ld l,$e2 +.skip1 + cp $28 + jr nz,.skip2 + ld hl,$9902 +.skip2 + cp $38 + jr nz,.loop5 + ld hl,$08d8 + ld de,$d840 + ld b,$08 +.loop6 + ld a,$ff + ld [de],a + inc de + ld [de],a + inc de + ld c,$02 + call $020a + ld a,$00 + ld [de],a + inc de + ld [de],a + inc de + inc de + inc de + dec b + jr nz,.loop6 + call func262 + ld hl,$014b + ld a,[hl] + cp $33 + jr nz,.a_488 + ld l,$44 + ld e,$30 + ld a,[hli] + cp e + jr nz,.a_4ce + inc e + jr .a_48c +.a_488 + ld l,$4b + ld e,$01 +.a_48c + ld a,[hli] + cp e + jr nz,.a_4ce + ld l,$34 + ld bc,$0010 +.a_495 + ld a,[hli] + add b + ld b,a + dec c + jr nz,.a_495 + ld [$d000],a + ld hl,$06c7 + ld c,$00 +.a_4a3 + ld a,[hli] + cp b + jr z,.a_4af + inc c + ld a,c + cp $4f + jr nz,.a_4a3 + jr .a_4ce +.a_4af + ld a,c + sub $41 + jr c,.a_4d0 + ld hl,$0716 + ld d,$00 + ld e,a + add hl,de +.a_4bb + ld a,[$0137] + ld d,a + ld a,[hl] + cp d + jr z,.a_4d0 + ld de,$000e + add hl,de + ld a,c + add e + ld c,a + sub $5e + jr c,.a_4bb +.a_4ce + ld c,$00 +.a_4d0 + ld hl,$0733 + ld b,$00 + add hl,bc + ld a,[hl] + and $1f + ld [$d008],a + ld a,[hl] + and $e0 + rlca + rlca + rlca + ld [$d00b],a + call $04e9 + ret + +func4e9: + ld de,$0791 + ld hl,$d900 + ld a,[$d00b] + ld b,a + ld c,$1e +.loop + bit 0,b + jr nz,.a_4fb + inc de + inc de +.a_4fb + ld a,[de] + ld [hli],a + jr nz,.a_501 + dec de + dec de +.a_501 + bit 1,b + jr nz,.a_507 + inc de + inc de +.a_507 + ld a,[de] + ld [hli],a + inc de + inc de + jr nz,.a_50f + dec de + dec de +.a_50f + bit 2,b + jr z,.a_518 + dec de + dec hl + ld a,[de] + ld [hli],a + inc de +.a_518 + ld a,[de] + ld [hli],a + inc de + dec c + jr nz,.loop + ld hl,$d900 + ld de,$da00 + call $0564 + ret + +func528: + ld hl,ManualSelectPalettes + ld a,[$d005] + rlca + rlca + ld b,$00 + ld c,a + add hl,bc + ld de,$d840 + ld b,$08 +.loop + push hl + ld c,$02 + call $020a + inc de + inc de + inc de + inc de + inc de + inc de + pop hl + dec b + jr nz,.loop + ld de,$d842 + ld c,$02 + call $020a + ld de,$d84a + ld c,$02 + call $020a + dec hl + dec hl + ld de,$d844 + ld c,$02 + call $020a + ret + +func564: + ld c,$60 +.loop + ld a,[hli] + push hl + push bc + ld hl,$07e8 + ld b,$00 + ld c,a + add hl,bc + ld c,$08 + call $020a + pop bc + pop hl + dec c + jr nz,.loop + ret + +func57b: + ld a,[$d008] + ld de,$0018 + inc a +.loop + dec a + jr z,.done + add hl,de + jr nz,.loop +.done + ret + +func589: + call $021d + ld a,b + and $ff + jr z,.a_5a0 + ld hl,$08e4 + ld b,$00 +.loop + ld a,[hli] + cp c + jr z,.a_5a2 + inc b + ld a,b + cp $0c + jr nz,.loop +.a_5a0 + jr .done +.a_5a2 + ld a,b + ld [$d005],a + ld a,$1e + ld [$d002],a + ld de,$000b + add hl,de + ld d,[hl] + ld a,d + and $1f + ld e,a + ld hl,$d008 + ld a,[hld] + ld [hli],a + ld a,e + ld [hl],a + ld a,d + and $e0 + rlca + rlca + rlca + ld e,a + ld hl,$d00b + ld a,[hld] + ld [hli],a + ld a,e + ld [hl],a + call $04e9 + call $0528 +.done + ret + +func5d0: + call func211 + ld a,[$0143] + bit 7,a + jr z,.next + ld [$ff4c],a + jr .done +.next + ld a,$04 + ld [$ff4c],a + ld a,$01 + ld [$ff6c],a + ld hl,$da00 + call $057b + ld b,$10 + ld d,$00 + ld e,$08 + call $024a + ld hl,data7a + ld a,[$d000] + ld b,a + ld c,$02 +.loop + ld a,[hli] + cp b + call z,$03da + dec c + jr nz,.loop +.done + ret @@ -40,8 +40,8 @@ lloop: jr nz,lloop ; load 8 additional bytes into vram - ld de,moredata - ld b,moredata_ - moredata + ld de,registered + ld b,registered_ - registered eloop: ld a,[de] inc de @@ -140,13 +140,11 @@ dloop: ret logo: - db $ce,$ed,$66,$66,$cc,$0d,$00,$0b,$03,$73,$00,$83,$00,$0c,$00,$0d - db $00,$08,$11,$1f,$88,$89,$00,$0e,$dc,$cc,$6e,$e6,$dd,$dd,$d9,$99 - db $bb,$bb,$67,$63,$6e,$0e,$ec,$cc,$dd,$dc,$99,$9f,$bb,$b9,$33,$3e +INCLUDE "nintendo.s" -moredata: - db $3c,$42,$b9,$a5,$b9,$a5,$42,$3c -moredata_: +registered: +INCBIN "®.bin" +registered_: logocheck: ld hl,$0104 ; cart logo @@ -153,9 +153,7 @@ loopbe: ret logo: - db $ce,$ed,$66,$66,$cc,$0d,$00,$0b,$03,$73,$00,$83,$00,$0c,$00,$0d - db $00,$08,$11,$1f,$88,$89,$00,$0e,$dc,$cc,$6e,$e6,$dd,$dd,$d9,$99 - db $bb,$bb,$67,$63,$6e,$0e,$ec,$cc,$dd,$dc,$99,$9f,$bb,$b9,$33,$3e +INCLUDE "nintendo.s" db $ff,$ff @@ -40,8 +40,8 @@ lloop: jr nz,lloop ; load 8 additional bytes into vram - ld de,moredata - ld b,moredata_ - moredata + ld de,registered + ld b,registered_ - registered eloop: ld a,[de] inc de @@ -140,13 +140,11 @@ dloop: ret logo: - db $ce,$ed,$66,$66,$cc,$0d,$00,$0b,$03,$73,$00,$83,$00,$0c,$00,$0d - db $00,$08,$11,$1f,$88,$89,$00,$0e,$dc,$cc,$6e,$e6,$dd,$dd,$d9,$99 - db $bb,$bb,$67,$63,$6e,$0e,$ec,$cc,$dd,$dc,$99,$9f,$bb,$b9,$33,$3e +INCLUDE "nintendo.s" -moredata: - db $3c,$42,$b9,$a5,$b9,$a5,$42,$3c -moredata_: +registered: +INCBIN "®.bin" +registered_: logocheck: ld hl,$0104 ; cart logo diff --git a/nintendo.s b/nintendo.s new file mode 100644 index 0000000..95239f5 --- /dev/null +++ b/nintendo.s @@ -0,0 +1,3 @@ + db $ce,$ed,$66,$66,$cc,$0d,$00,$0b,$03,$73,$00,$83,$00,$0c,$00,$0d + db $00,$08,$11,$1f,$88,$89,$00,$0e,$dc,$cc,$6e,$e6,$dd,$dd,$d9,$99 + db $bb,$bb,$67,$63,$6e,$0e,$ec,$cc,$dd,$dc,$99,$9f,$bb,$b9,$33,$3e @@ -73,8 +73,8 @@ lloop: jr nz,lloop ; load 8 additional bytes into vram - ld de,moredata - ld b,moredata_ - moredata + ld de,registered + ld b,registered_ - registered eloop: ld a,[de] inc de @@ -174,9 +174,9 @@ loopd6: inc hl ret -moredata: - db $3c,$42,$b9,$a5,$b9,$a5,$42,$3c -moredata_: +registered: +INCBIN "®.bin" +registered_: nop nop nop @@ -73,8 +73,8 @@ lloop: jr nz,lloop ; load 8 additional bytes into vram - ld de,moredata - ld b,moredata_ - moredata + ld de,registered + ld b,registered_ - registered eloop: ld a,[de] inc de @@ -174,9 +174,9 @@ loopd6: inc hl ret -moredata: - db $3c,$42,$b9,$a5,$b9,$a5,$42,$3c -moredata_: +registered: +INCBIN "®.bin" +registered_: nop nop nop diff --git a/stadium_cgb.s b/stadium_cgb.s index 16a9848..db2a536 100644 --- a/stadium_cgb.s +++ b/stadium_cgb.s @@ -14,7 +14,14 @@ loop: jp part2 data13: - db $d3,$00,$98,$a0,$12,$d3,$00,$80,$00,$40,$3c,$42,$b9,$a5,$b9,$a5,$42,$3c + db $d3,$00,$98,$a0,$12 + +data18: + db $d3,$00,$80,$00,$40 + +registered: +INCBIN "®.bin" +registered_: part2: ld [$ff40],a @@ -49,8 +56,8 @@ loop3: cp $34 jr nz,loop3 - ld de,$001d - ld b,$08 + ld de,registered + ld b,registered_ - registered loop4: ld a,[de] inc de @@ -417,8 +424,8 @@ loop2a9: call $00b3 ld bc,$fff8 add hl,bc - ld de,$001d - ld c,$08 + ld de,registered + ld c,registered_ - registered loop2c8: inc hl ld a,[de] Binary files differ |
